http://www.hackershomepage.com/section4.htm

http://www.google.com/search?hl=en&q=hack+rfid

http://www.eweek.com/article2/0,1759,1628696,00.asp

http://www.zone-h.org/component/option,com_attacks/Itemid,43/page,3

http://antionline.com

http://2600.org

http://patmedia.net/marklevinson/cool/cool_illusion.html

http://computercop.info